The invention discloses a vehicle speed planning method and system considering the influence of a front vehicle and traffic light information, and the method comprises the steps: A, building a traffic map model, and obtaining the driving data; b, predicting the speed of a preceding vehicle; c, the maximum vehicle speed allowed to be reached by the vehicle in the future is calculated; and D, calculating whether the vehicle can pass through the next intersection in the green light window period at the allowed vehicle speed, if so, increasing the speed to the allowed maximum vehicle speed, and if not, reducing the speed to ensure that the vehicle passes through the intersection when the next green light arrives. The planning system comprises an offline part and an online part, the offline part is used for executing the step B, and the online part is used for executing the step C and the step D. The method comprehensively considers the influence of the preceding vehicle and traffic light information, considers the limitation of the preceding vehicle when planning the target vehicle speed based on the traffic light information, also considers the distance when planning the vehicle speed, and is more in line with the actual situation; according to the optimized prediction model, the training time is shorter, the prediction is more accurate, and the time required for operation is reduced.

    本发明公开了一种一种考虑前车影响和红绿灯信息的车速规划方法及系统,包括:A建立交通地图模型,获取行驶数据;B预测前车速度;C计算本车未来允许达到的最大车速;D计算本车在允许车速下能否在绿灯窗口期内通过下一个路口,若能则提速至允许的最大车速,若不能则减速以保证在下一个绿灯到来时通过该路口。规划系统包括离线和在线两部分,离线部分用于执行步骤B,在线部分用于执行步骤C和步骤D。综合考虑了前车的影响和红绿灯信息,在基于红绿灯信息规划目标车速时,将前车的限制也考虑了进去,在车速规划的时候把间距也考虑了进去,更加符合实际情况;优化后的预测模型,训练时间更短,预测更加精确,运行所需时间减少。


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    Title :

    Vehicle speed planning method and system considering front vehicle influence and traffic light information


    Additional title:

    一种考虑前车影响和红绿灯信息的车速规划方法和系统


    Contributors:
    HUH EUN-YOUNG (author) / YUGUO XU (author) / ZHENG WEIGUANG (author) / HUANG QIBAI (author) / HUANG YIZHE (author) / LI SHANDE (author)

    Publication date :

    2023-07-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



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